Snappy Compression Config - Kafka connect

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shrk

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May 17, 2016, 5:30:50 AM5/17/16
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Hi ,

Is there any direct method for setting compression codec preferably snappy compression in Kafka connect - Sink Connector .

Or what is the best way to set the compression methodology in kafka connect to store the kafka messages to the local file system disk which are snappy compressed.

Do we have direct method to set the compression or should we use snappy library externally to compress the data and push to the file ( snappy format )

Regards,
shrk

Liquan Pei

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May 17, 2016, 12:50:36 PM5/17/16
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Hi Shrk,

Kafka connect don't provide compression related code. Although Kafka Connect depends on the clinets jar which includes Compressor, but I don'd encourage you to use that may not meet the specific needs of your connector.

Thanks,
Liquan


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Ewen Cheslack-Postava

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May 19, 2016, 12:15:46 AM5/19/16
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I would suggest handling this at the Kafka level -- if you want data produced to Kafka that is snappy compressed, just configure the producers and consumers in Connect to use snappy compression. You can override any client settings as described here: http://docs.confluent.io/2.0.1/connect/userguide.html#overriding-producer-consumer-settings

-Ewen

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shrk

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May 30, 2016, 8:37:10 AM5/30/16
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Hi Ewen,

I tried setting compression codec at the producer level , but even after overwriting the properties in Kafka Connect worker properties the records fetched from the SinkTask put method is not the snappy compressed data . Can I know how can I fetch the snappy data ? 

Thanks,
Shrk


On Thursday, 19 May 2016 09:45:46 UTC+5:30, Ewen Cheslack-Postava wrote:
I would suggest handling this at the Kafka level -- if you want data produced to Kafka that is snappy compressed, just configure the producers and consumers in Connect to use snappy compression. You can override any client settings as described here: http://docs.confluent.io/2.0.1/connect/userguide.html#overriding-producer-consumer-settings

-Ewen
On Tue, May 17, 2016 at 9:50 AM, Liquan Pei <liq...@confluent.io> wrote:
Hi Shrk,

Kafka connect don't provide compression related code. Although Kafka Connect depends on the clinets jar which includes Compressor, but I don'd encourage you to use that may not meet the specific needs of your connector.

Thanks,
Liquan

On Tue, May 17, 2016 at 2:30 AM, shrk <nkravi...@gmail.com> wrote:
Hi ,

Is there any direct method for setting compression codec preferably snappy compression in Kafka connect - Sink Connector .

Or what is the best way to set the compression methodology in kafka connect to store the kafka messages to the local file system disk which are snappy compressed.

Do we have direct method to set the compression or should we use snappy library externally to compress the data and push to the file ( snappy format )

Regards,
shrk

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Ewen Cheslack-Postava

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May 30, 2016, 7:42:59 PM5/30/16
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Tasks are layered on top of the consumer, which decompresses messages. In fact, due to the way Kafka handles compression (compressing a set of messages in one block for efficiency w/ small messages), you generally cannot access individual compressed messages. This isn't a limitation of Kafka Connect -- this is also how the consumer works. I think you might be able to get at the compressed message set via the old simple consumer interfaces, but there are no plans to expose that in Kafka Connect.

-Ewen

On Mon, May 30, 2016 at 5:37 AM, shrk <nkravi...@gmail.com> wrote:
Hi Ewen,

I tried setting compression codec at the producer level , but even after overwriting the properties in Kafka Connect worker properties the records fetched from the SinkTask put method is not the snappy compressed data . Can I know how can I fetch the snappy data ? 

Thanks,
Shrk


On Thursday, 19 May 2016 09:45:46 UTC+5:30, Ewen Cheslack-Postava wrote:
I would suggest handling this at the Kafka level -- if you want data produced to Kafka that is snappy compressed, just configure the producers and consumers in Connect to use snappy compression. You can override any client settings as described here: http://docs.confluent.io/2.0.1/connect/userguide.html#overriding-producer-consumer-settings

-Ewen
On Tue, May 17, 2016 at 9:50 AM, Liquan Pei <liq...@confluent.io> wrote:
Hi Shrk,

Kafka connect don't provide compression related code. Although Kafka Connect depends on the clinets jar which includes Compressor, but I don'd encourage you to use that may not meet the specific needs of your connector.

Thanks,
Liquan

On Tue, May 17, 2016 at 2:30 AM, shrk <nkravi...@gmail.com> wrote:
Hi ,

Is there any direct method for setting compression codec preferably snappy compression in Kafka connect - Sink Connector .

Or what is the best way to set the compression methodology in kafka connect to store the kafka messages to the local file system disk which are snappy compressed.

Do we have direct method to set the compression or should we use snappy library externally to compress the data and push to the file ( snappy format )

Regards,
shrk

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Thanks,
Ewen

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dori.w...@fyber.com

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Jan 2, 2018, 7:34:42 AM1/2/18
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Hi 

So confluent s3 connector cannot save the data compressed? 

This is a little problematic, we use kafka to save 9T json dailt data  on S3 , currently, we are using "secor" solution but we want to move on to kafka connector 
and as we have large amount of data we want to continue to save the data compressed (gz)

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Thanks,
Ewen

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Konstantine Karantasis

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Jan 17, 2018, 10:22:02 AM1/17/18
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There's a PR in progress to add compression for json text files in Confluent's S3 sink connector. Should be merged soon. 


-Konstantine



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Thanks,
Ewen

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Thanks,
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